This face mask is incredible, a must purchase. I normally don't take the time to do a review, but Knix is a game changer. I have bought tons of different name brand masks, they have all made my face sweaty, even the athletic ones, especially at the gym! But this mask feels light and is breathable. It is now the only mask I will wear at the gym. I put a plastic piece underneath and it is always lifted off of my nose while working out, it's awesome!